.ka {
    width: 200px;
    height: 300px;
    float: left;
    margin-left: 18px;
    margin-bottom: 20px;
    box-shadow: #ACACAC 5px 5px 6px 0px;
    border: 1px solid #cccccc;
}
.ka:hover{
    transition:box-shadow 0.5s;
    background: #E74E4E;
    color: #FFFFFF;
}

.ka p {
    line-height: 20px;
    text-align: center;
    margin: 0 5px;
}

.card{
}
/*字体*/
.f23 {
    font-size: 23px;
}
.f60 {
    font-size: 60px;
}

/*颜色*/
.blue {
    border-color:#49A1FD;
    background: #49A1FD
}
.red {
    border-color:#E74E4E;
    background: #E74E4E;
}
.violet{
    border-color:#DD40CE;
    background: #DD40CE
}
.green{
    border-color:#00a652;
    background: #00a652;
}

.card .card-img{
    width: 190px;
    height: 240px;
    text-align:center;
    margin: 5px;
    overflow: hidden;
}
.card .card-img img{
    margin: 0 auto;
    height: 240px;
    width: 190px;
}